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Functional dynamics of Plant Growth-Promoting Bacteria (PGPB) in Adaptation to Abiotic Stress and Enhancement of Crop Productivity
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Bouchaib Bahlaouan ,
Alla Silkina ,
Mohamed Lahrairi ,
Nadia Boutaleb
Natural Built Social Environment Health, Volume: 1, Issue: 3, Pages: 125 - 157
Swansea University Author:
Alla Silkina
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Copyright (c) 2025 Karima Jmaili, Bouchaib Bahlaouan, Alla Silkina, Mohamed Lahrairi, Nadia Boutaleb. This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).
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DOI (Published version): 10.63095/nbseh.25.103623
Abstract
In the context of sustainable agriculture, plant growth-promoting bacteria (PGPB) are key microbial biostimulants. These beneficial microorganisms enhance nutrient uptake, strengthen plant defence mechanisms, and improve tolerance to abiotic stresses, contributing to reduced reliance on chemical inp...
| Published in: | Natural Built Social Environment Health |
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| ISSN: | 3085-5136 3085-461X |
| Published: |
Moroccan Association for Environmental and Health Sciences and Technologies (AMSTES)
2025
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| Online Access: |
Check full text
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa71212 |
| Abstract: |
In the context of sustainable agriculture, plant growth-promoting bacteria (PGPB) are key microbial biostimulants. These beneficial microorganisms enhance nutrient uptake, strengthen plant defence mechanisms, and improve tolerance to abiotic stresses, contributing to reduced reliance on chemical inputs. Bacterial genera such as Azospirillum, Rhizobium, Bacillus, and Pseudomonas have demonstrated positive effects on crop yield and quality, even under challenging conditions including salinity, drought, and heavy metal contamination. Their beneficial actions include several mechanisms, such as phytohormone production, nutrient solubilization, nitrogen fixation, and modulation of gene expression linked to plant defence and metabolism. The efficacy of these bacteria varies according to microbial strain, plant species, and environmental context. This review shows the agronomic value of PGPB and emphasizes the importance of continued research into their functional interactions in resilient and environment-friendly farming systems. |
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| Keywords: |
Microbial biostimulant, PGPB, Abiotic stress |
| College: |
Faculty of Science and Engineering |
| Funders: |
National Centre for Scientific and Technical Research (CNRST) grant number 101 UH2C2023, awarded as part of the PhD-Associate Scholarship Programme (PASS). |
| Issue: |
3 |
| Start Page: |
125 |
| End Page: |
157 |